Junping Ren

Name:Junping Ren
Date of Birth:July 07, 1990
Institution:College of Civil Engineering and Mechanics, Lanzhou University
Address:222 South Tianshui Road, Lanzhou 730000, China
2015.09-2019.09 Ph.D. in Civil Engineering, Faculty of Engineering, University of Ottawa, Ottawa, Canada
2018.05-2018.07 Visiting scholar at the Department of Civil Engineering, Case Western Reserve University, Cleveland, USA
2012.09-2015.07 M.S. in Road and Railway Engineering, School of Highway, Chang’an University, Xi’an, China
2008.09-2012.07 B.S. in Road, Bridge and River Crossing Engineering (Road Engineering), School of Highway, Chang’an University, Xi’an, China
2020.12-Present Young Researcher, College of Civil Engineering and Mechanics, Lanzhou University, Lanzhou, China
2019.10-2020.10 Postdoctoral Research Fellow (JSPS), Faculty of Engineering, Hokkaido University, Sapporo, Japan
Research Areas
1. Soil-water characteristic curve (SWCC) and Soil-freezing characteristic curve (SFCC)
2. Water, vapor and solute migration in unsaturated freezing soils
3. Soil behavior under drying-wetting and freezing-thawing cycles
4. Multiphases interaction in porous materials
Visiting Positions
Members and Activities
1. Member: Canadian Geotechnical Society; American Society of Civil Engineers.
2. Reviewer: Water Resources Research; Cement and Concrete Composites; Vadose Zone Journal; Cold Regions Science and Technology; Science of The Total Environment; etc.
3. Guest Editor. Advances in Civil Engineering. Special Issue: Problematic and Unsaturated Soil Mechanics: Fundamental Challenges, Breakthroughs, and Opportunities.
2020.05: Sciences in Cold and Arid Regions 2017-2018 Excellent Author
2019.10: Postdoctoral Fellowship, Japan Society for the Promotion of Science (JSPS)
2018.05-2018.07: Faculty International Experience Scholarship, University of Ottawa
2015.09-2019.08: China Scholarship Council (CSC)–University of Ottawa joint scholarship
2013: “Huawei Cup” 10th China Post-Graduate Mathematical Contest in Modeling, Second Prize
2011: 6th National Competition of Transport Science and Technology for Students (NACTranS), Second Prize
2010: Contemporary Undergraduate Mathematical Contest in Modeling (CUMCM), First Prize
Main Courses
Research Grants

1. Japan Society for the Promotion of Science (JSPS), The freezing characteristic and frost heave behavior of a typical Hokkaido soil, 2019-2020

2. Ministry of Transportation of Ontario of Canada (MTO), Highway Infrastructure Innovation Funding Program Project: Simple Approaches for Predicting Resilient Modulus of Ontario Pavement Materials Considering the Influence of Temperature and Moisture Changes, 2016-2019

3. National Research Council of Canada (NRC), Climate-Resilient Core Public Infrastructure: Roads Project: Influence of Climate Factors on the Long Term Performance of Pavements, 2017

Refereed Publications

1. Ren, J.P., and Vanapalli, S.K. 2020. Effect of freeze-thaw cycling on the soil-freezing characteristic curve of five Canadian soils. Vadose Zone Journal, 19(1), p.e20039. DOI:

2. Ren, J.P., Vanapalli, S.K., Han, Z., Omenogor, K.O., and Bai, Y. 2019. The resilient moduli of five Canadian soils under wetting and freeze-thaw conditions and their estimation by using an artificial neural network model. Cold Regions Science and Technology, 168: 1-14. DOI:

3. Ren, J.P., and Vanapalli, S.K. 2019. Comparison of soil-freezing and soil-water characteristic curves of two Canadian soils. Vadose Zone Journal, 18:180185. DOI:

4. Ren, J.P., and Vanapalli, S.K. 2018. Discussion on “A new model for capturing void ratio-dependent unfrozen water characteristics curves”. Computers and Geotechnics, 103: 82-85. DOI:

5. Ren, J.P., and Vanapalli, S.K. 2018. Empirical model for predicting the resilient modulus of frozen unbound road materials using a hyperbolic function. Transportation Geotechnics, 17: 66-74. DOI:

6. Han, Z., Vanapalli, S.K., Ren, J.P., and Zou, W.L. 2018. Characterizing cyclic and static moduli and strength of compacted pavement subgrade soils considering moisture variation. Soils and Foundations, 58(5): 1187-1199. DOI:

7. Ren, J.P., and Vanapalli, S.K. 2017. Prediction of the resilient modulus of frozen unbound road materials using the soil-freezing characteristic curve. Canadian Geotechnical Journal, 1-8. DOI:

8. Ren, J.P., Vanapalli, S.K., and Han Z. 2017. Soil freezing process and different expressions for the soil-freezing characteristic curve. Sciences in Cold and Arid Regions, 9(3): 0221–0228. DOI:

9. Ren, J.P., Ma, B., Si, W., Zhou, X.Y., and Li, C. 2014. Preparation and analysis of composite phase change material used in asphalt mixture by sol–gel method. Construction and Building Materials, 71: 53-62. DOI: